Question

A bus travels 20 km in 30 minutes. What is the average speed of the
bus in km/hr?

Answer 1

40 km

Explanation:

You have 2 variables: km and minutes/hour

30 minutes turned into 60 minutes(1 hour) by multiplying by 2...

So you need to do the same for km!

20km * 2 = 40km per hour